查询词典 bicyclic

Some scholars and developers also told the reporter mentioned that in 1992 to determine the overall planning of Beijing, Beijing Fengtai area between the bicyclic and tricyclic large "green belt", there are quite a large area of land should be used in real estate development and construction projects, but has problems as a result of villages in the city did not effectively implemented, if the villages in the finishing process has been exceeded, then no doubt there are considerable market opportunities.

一些学者和开发商还告诉记者提到，在1992年确定的北京城市总体规划方案，北京丰台区之间的大二环和三环&绿化地带&，有相当大面积的土地应当用于房地产开发和建设项目，但问题是由于村庄在城市没有有效的执行，如果村庄整理工艺已经超过，那么毫无疑问，存在着相当大的市场机会。

In Chapter 4, we characterize bicyclic graphs with the smallest values of the second Zagreb index, and if α≥ 1, unicyclic graphs with the smallest value of the general Randic index.

在论文的第四章里，我们给出了双圈图的第二Zagreb指标的最小值和在α≥1时，单圈图的广义Randi指标的最小值。

Results Two bicyclic azasugars and a thiosugar were produced from L-sorbose in several steps.

结果 经几步反应成功地从L-山梨糖合成了三种双环氮杂糖和硫杂糖。

This thesis aims at the studies on the total synthesis of bicyclic sesquiterpenes and the novel and efficient synthetic strategy of Valsartan, a kind of medicine for hypertension.

本论文以双环倍半萜类天然产物的全合成研究及抗高血压药物——缬沙坦的新合成路线为研究对象，分为以下四部分内容。

Previous studies have showed that bicyclic alkanes and MMAs biomarkers in sediment are related to the parent material import of Botryococcus braunii.

前人研究表明，葡萄藻可能是地质体中两环倍半萜和单甲基支链烷烃的重要母质来源。

This indicates that the IE of these aza-aromatic bicyclic molecules increases with the number of the N atoms. This finding may be attributed to the nature and the N atoms in the five-membered ring.

表示因为氮原子具有较大拉电子的能力，因此五角环上具有较多的氮原子会使得分子具有较高的游离能。

This structure is unstable,and the proton is transferred from C6 to the sulfone to yield the bicyclic end product.

烯胺反应物也可先通过噻唑环内的氢迁移得到亚胺式反应物，从而得到亚胺式双环产物。

Moreover, the substituents on the bicyclic chromophore can also produce strong van der Waals and hydrophobic interactions with the residues located at the exterior part of the binding pocket.

同时 ，抑制剂双环上的取代基团也能和活性口袋外部的部分残基形成一定的范德华和疏水相互作用。

The acetate bicyclic guanidine as the catalyst is a nonmetallic and nontoxic organic compound; the method has low production cost, simple process operation, no pollution, a high product yield of more than or equal to 95 percent and a high product purity of more than or equal to 98 percent; and a synthesized biodegradable polymer has high biological safety.

催化剂醋酸双环胍为无金属、无毒有机化合物，生产成本低、工艺操作简便、无污染，产品产率高(≥95％)、产品纯度高(≥98％)；所合成的生物降解聚合物具有高度的生物安全性。

In these bicyclic sesquiterpanes,the relative abundance of the rearranged drimane is regularly changed in spatial distribution,which may indicate the characteristics of petroleum migration and accumulation in QHD32-6 oilfield.

该油田双环倍半萜中重排补身烷的相对丰度在纵向上和横向上都表现出有规律的变化，这种规律性的变化可能反映了秦皇岛32-6油田油气运移与聚集的特征。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷